Unexpected problem cambridge audio cxr200 - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 4 Old 01-09-2019, 12:06 PM - Thread Starter
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Unexpected problem cambridge audio cxr200

I have recently bought a Cambridge Audio CXR200, it promised to be the perfect replacement for my old 751R V1 which was superb for music/movies in my 7.1 speaker set-up but had well documented HDMI issues ie. slow sync etc.
Sure enough the CXR200 sounds great & is easy to set up, has a built in streaming module & none of the HDMI issues that plagued the 751R & is the perfect partner for my CXUHD disc player, the ARC works well with my LG 65E6 oled TV.

BUT I have now discovered that it doesnt produce an O/P & displays NO SIGNAL when fed a DTS-X 7.1 bitstream from the CXUHD, the old 751R was able to downmix & produce a DTS-HD MA 7.1 o/p when fed DTS-X. Dolby Atmos produces a 7.1 o/p ok?
When I raised this with Cambridge Audio support first they said they hadnt seen this problem before & asked me to get the CXR200 checked by the seller.
When I checked with Richer Sounds a guy there had raised exactly this problem some time ago & was told by Cambridge support that the CXR200 doesnt support DTS-X or Dolby Atmos.
This of course we know & dont require but what we expect is that DTS-X & Atmos are both backward compatible & should produce an o/p of some sort.
Atmos does do this ok but DTS-X doesnt.
This has become more of a problem recently since Universal are making DTS-X the only soundtrack option on some 4K UHD Blu-rays.
Has anyone else had this problem with the CXR200 or CXR120??
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post #2 of 4 Old 01-10-2019, 09:11 AM - Thread Starter
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Quote:
Originally Posted by ALBUM70 View Post
I have recently bought a Cambridge Audio CXR200, it promised to be the perfect replacement for my old 751R V1 which was superb for music/movies in my 7.1 speaker set-up but had well documented HDMI issues ie. slow sync etc.
Sure enough the CXR200 sounds great & is easy to set up, has a built in streaming module & none of the HDMI issues that plagued the 751R & is the perfect partner for my CXUHD disc player, the ARC works well with my LG 65E6 oled TV.

BUT I have now discovered that it doesnt produce an O/P & displays NO SIGNAL when fed a DTS-X 7.1 bitstream from the CXUHD, the old 751R was able to downmix & produce a DTS-HD MA 7.1 o/p when fed DTS-X. Dolby Atmos produces a 7.1 o/p ok?
When I raised this with Cambridge Audio support first they said they hadnt seen this problem before & asked me to get the CXR200 checked by the seller.
When I checked with Richer Sounds a guy there had raised exactly this problem some time ago & was told by Cambridge support that the CXR200 doesnt support DTS-X or Dolby Atmos.
This of course we know & dont require but what we expect is that DTS-X & Atmos are both backward compatible & should produce an o/p of some sort.
Atmos does do this ok but DTS-X doesnt.
This has become more of a problem recently since Universal are making DTS-X the only soundtrack option on some 4K UHD Blu-rays.
Has anyone else had this problem with the CXR200 or CXR120??
I know these units are fairly rare but surely there's someone who can confirm that this happens with their CXR200 or CXR120 also when fed a DTS-X bitstream from a Blu-ray player. I am still wondering whether mine has a fault or whether its something that Cambridge support could easily fix with a firmware update.
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post #3 of 4 Old 01-12-2019, 04:08 AM - Thread Starter
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Finally found someone who has the exact same problem ie DTS-X isnt backward compatible with their AVR, but they have an ONKYO receiver & Oppo 203 player. I am trying to contact them on the Blu-ray.com forum to see if they ever found out why or were able to overcome it but having registering difficulties on their website. Still mystified by this problem.
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post #4 of 4 Old 06-27-2019, 12:57 AM
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Angry CXR-120 & DTS-X "incompatibility"

Good morning.

I too have a CXR-120 with exactly the same issue. Last week I purchased a Blu-ray copy of "Jurassic World - Fallen Kingdom". I popped it into my Cambridge Azur 752BD and the only soundtrack offered is indeed DTS-X. The receiver displays "No Signal" and the silence is deafening...

I can remedy this (in a fashion) by resetting the 752 audio output to LPCM (normally Auto or Bitstream) which produces a 7.1 PCM at the receiver. However, this is tedious and not, I think, what the DTS guys intended. They claim DTS-X is fully backwards compatible, but clearly Cambridge Audio disagree.

I'm about to register a support request and will post progress here.
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